{signal: [
  {name: 'clk', wave: 'p...|...', period: 1},
  {name: 'exti', wave: 'x01.|0.x', phase: 1},
  {name: 'timi', wave: 'x01.|0.x', phase: 1},
  {name: 'ext_irq', wave: 'x010|..x'},
  {name: 'tim_irq', wave: 'x010|..x'}, ],
  config: {hscale: 2}
}
